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authorHarvey Harrison <harvey.harrison@gmail.com>2008-10-24 10:52:57 -0700
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-11-06 11:06:19 +0200
commit0ecb9529a4d47825778e7b0d226eb36019252a9d (patch)
tree1d39f3ba19e63ab4a47171433898171eba5ee793 /fs/ubifs/sb.c
parent069782a1ee55105220e5ae2db448495dac267cb1 (diff)
UBIFS: endian handling fixes and annotations
Noticed by sparse: fs/ubifs/file.c:75:2: warning: restricted __le64 degrades to integer fs/ubifs/file.c:629:4: warning: restricted __le64 degrades to integer fs/ubifs/dir.c:431:3: warning: restricted __le64 degrades to integer This should be checked to ensure the ubifs_assert is working as intended, I've done the suggested annotation in this patch. fs/ubifs/sb.c:298:6: warning: incorrect type in assignment (different base types) fs/ubifs/sb.c:298:6: expected int [signed] [assigned] tmp fs/ubifs/sb.c:298:6: got restricted __le64 [usertype] <noident> fs/ubifs/sb.c:299:19: warning: incorrect type in assignment (different base types) fs/ubifs/sb.c:299:19: expected restricted __le64 [usertype] atime_sec fs/ubifs/sb.c:299:19: got int [signed] [assigned] tmp fs/ubifs/sb.c:300:19: warning: incorrect type in assignment (different base types) fs/ubifs/sb.c:300:19: expected restricted __le64 [usertype] ctime_sec fs/ubifs/sb.c:300:19: got int [signed] [assigned] tmp fs/ubifs/sb.c:301:19: warning: incorrect type in assignment (different base types) fs/ubifs/sb.c:301:19: expected restricted __le64 [usertype] mtime_sec fs/ubifs/sb.c:301:19: got int [signed] [assigned] tmp This looks like a bugfix as your tmp was a u32 so there was truncation in the atime, mtime, ctime value, probably not intentional, add a tmp_le64 and use it here. fs/ubifs/key.h:348:9: warning: cast to restricted __le32 fs/ubifs/key.h:348:9: warning: cast to restricted __le32 fs/ubifs/key.h:419:9: warning: cast to restricted __le32 Read from the annotated union member instead. fs/ubifs/recovery.c:175:13: warning: incorrect type in assignment (different base types) fs/ubifs/recovery.c:175:13: expected unsigned int [unsigned] [usertype] save_flags fs/ubifs/recovery.c:175:13: got restricted __le32 [usertype] flags fs/ubifs/recovery.c:186:13: warning: incorrect type in assignment (different base types) fs/ubifs/recovery.c:186:13: expected restricted __le32 [usertype] flags fs/ubifs/recovery.c:186:13: got unsigned int [unsigned] [usertype] save_flags Do byteshifting at compile time of the flag value. Annotate the saved_flags as le32. fs/ubifs/debug.c:368:10: warning: cast to restricted __le32 fs/ubifs/debug.c:368:10: warning: cast from restricted __le64 Should be checked if the truncation was intentional, I've changed the printk to print the full width. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/sb.c')
-rw-r--r--fs/ubifs/sb.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 2bf753b3888..0f392351dc5 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -81,6 +81,7 @@ static int create_default_filesystem(struct ubifs_info *c)
int lpt_lebs, lpt_first, orph_lebs, big_lpt, ino_waste, sup_flags = 0;
int min_leb_cnt = UBIFS_MIN_LEB_CNT;
uint64_t tmp64, main_bytes;
+ __le64 tmp_le64;
/* Some functions called from here depend on the @c->key_len filed */
c->key_len = UBIFS_SK_LEN;
@@ -295,10 +296,10 @@ static int create_default_filesystem(struct ubifs_info *c)
ino->ch.node_type = UBIFS_INO_NODE;
ino->creat_sqnum = cpu_to_le64(++c->max_sqnum);
ino->nlink = cpu_to_le32(2);
- tmp = cpu_to_le64(CURRENT_TIME_SEC.tv_sec);
- ino->atime_sec = tmp;
- ino->ctime_sec = tmp;
- ino->mtime_sec = tmp;
+ tmp_le64 = cpu_to_le64(CURRENT_TIME_SEC.tv_sec);
+ ino->atime_sec = tmp_le64;
+ ino->ctime_sec = tmp_le64;
+ ino->mtime_sec = tmp_le64;
ino->atime_nsec = 0;
ino->ctime_nsec = 0;
ino->mtime_nsec = 0;